[Sidus Four] What CRMX firmware are my Sidus Four transmitters running? 

Where to look in the Sidus Four's menu to determine what CRMX firmware each of it's CRMX wireless processors are running.

Please make sure you are on the latest version of the CRMX Firmware.

To see the firmware versions of your transmitters:

1. Go to Update in the menu settings
2. Scroll to the bottom of the screen.
   The four CRMX transmitter firmware versions will be shown.
   Such as  A-1.1.1.0   B-1.1.1.0   C-1.1.1.0   D-1.1.1.0

To update the CRMX Firmware for each CRMX wireless processor, download the CRMX Toolbox app for iOS, iPadOS and Android.
As of March 2025, the latest CRMX firmware is version 1.1.1.5